Earthquake detector

Details Earthquake detector Earthquake detector

1995-10-04

1997-05-27

Williams, Hezron E.

Measuring and testing

Vibration

Sensing apparatus

367182, 340690, 181122, 200 6145R, G01V 118, G08B 2100

Patent

active

056334630

ABSTRACT:
An earthquake detector including a platform fixedly coupleable to a recipient surface for receiving vibrations generated as a result of an earthquake; a spring-loaded frame secured to the platform; an alarm mechanism coupled to the spring-loaded frame for providing an alarm when the platform and frame are shaken; and a counterweight coupled to the frame for damping its vibration.

REFERENCES:
patent: 3626364 (1971-12-01), Simon et al.
patent: 4368525 (1983-01-01), Obata et al.
patent: 4945347 (1990-07-01), Perry
patent: 5285032 (1994-02-01), Robbinette
patent: 5414677 (1995-05-01), Feagin, Jr. et al.
patent: 5418523 (1995-05-01), Anderson et al.

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